diff options
Diffstat (limited to 'sub/unrar_exec.c')
| -rw-r--r-- | sub/unrar_exec.c | 235 |
1 files changed, 0 insertions, 235 deletions
diff --git a/sub/unrar_exec.c b/sub/unrar_exec.c deleted file mode 100644 index 6de8c59bef..0000000000 --- a/sub/unrar_exec.c +++ /dev/null @@ -1,235 +0,0 @@ -/* - * List files and extract file from rars by using external executable unrar. - * - * Copyright (C) 2005 Jindrich Makovicka <makovick gmail com> - * Copyright (C) 2007 Ulion <ulion2002 gmail com> - * - * This file is part of MPlayer. - * - * MPlayer is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * MPlayer is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with MPlayer; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - */ - -#include <sys/wait.h> -#include <unistd.h> -#include <fcntl.h> -#include <stdlib.h> -#include <stdio.h> -#include <string.h> -#include <errno.h> -#include <locale.h> -#include "unrar_exec.h" - -#include "mp_msg.h" - -#define UNRAR_LIST 1 -#define UNRAR_EXTRACT 2 - -char* unrar_executable = NULL; - -static FILE* launch_pipe(pid_t *apid, const char *executable, int action, - const char *archive, const char *filename) -{ - if (!executable || access(executable, R_OK | X_OK)) return NULL; - if (access(archive, R_OK)) return NULL; - { - int mypipe[2]; - pid_t pid; - - if (pipe(mypipe)) { - mp_msg(MSGT_GLOBAL, MSGL_ERR, "UnRAR: Cannot create pipe.\n"); - return NULL; - } - - pid = fork(); - if (pid == 0) { - /* This is the child process. Execute the unrar executable. */ - close(mypipe[0]); - // Close MPlayer's stdin, stdout and stderr so the unrar binary - // can not mess them up. - // TODO: Close all other files except the pipe. - close(0); close(1); close(2); - // Assign new stdin, stdout and stderr and check they actually got the - // right descriptors. - if (open("/dev/null", O_RDONLY) != 0 || dup(mypipe[1]) != 1 - || open("/dev/null", O_WRONLY) != 2) - _exit(EXIT_FAILURE); - if (action == UNRAR_LIST) - execl(executable, executable, "v", archive, NULL); - else if (action == UNRAR_EXTRACT) - execl(executable, executable, "p", "-inul", "-p-", - archive,filename,NULL); - mp_msg(MSGT_GLOBAL, MSGL_ERR, "UnRAR: Cannot execute %s\n", executable); - _exit(EXIT_FAILURE); - } - if (pid < 0) { - /* The fork failed. Report failure. */ - mp_msg(MSGT_GLOBAL, MSGL_ERR, "UnRAR: Fork failed\n"); - return NULL; - } - /* This is the parent process. Prepare the pipe stream. */ - close(mypipe[1]); - *apid = pid; - if (action == UNRAR_LIST) - mp_msg(MSGT_GLOBAL, MSGL_V, - "UnRAR: call unrar with command line: %s v %s\n", - executable, archive); - else if (action == UNRAR_EXTRACT) - mp_msg(MSGT_GLOBAL, MSGL_V, - "UnRAR: call unrar with command line: %s p -inul -p- %s %s\n", - executable, archive, filename); - return fdopen(mypipe[0], "r"); - } -} - -#define ALLOC_INCR 1 * 1024 * 1024 -int unrar_exec_get(unsigned char **output, unsigned long *size, - const char *filename, const char *rarfile) -{ - int bufsize = ALLOC_INCR, bytesread; - pid_t pid; - int status = 0; - FILE *rar_pipe; - - rar_pipe=launch_pipe(&pid,unrar_executable,UNRAR_EXTRACT,rarfile,filename); - if (!rar_pipe) return 0; - - *size = 0; - - *output = malloc(bufsize); - - while (*output) { - bytesread=fread(*output+*size, 1, bufsize-*size, rar_pipe); - if (bytesread <= 0) - break; - *size += bytesread; - if (*size == bufsize) { - char *p; - bufsize += ALLOC_INCR; - p = realloc(*output, bufsize); - if (!p) - free(*output); - *output = p; - } - } - fclose(rar_pipe); - pid = waitpid(pid, &status, 0); - if (!*output || !*size || (pid == -1 && errno != ECHILD) || - (pid > 0 && status)) { - free(*output); - *output = NULL; - *size = 0; - return 0; - } - if (bufsize > *size) { - char *p = realloc(*output, *size); - if (p) - *output = p; - } - mp_msg(MSGT_GLOBAL, MSGL_V, "UnRAR: got file %s len %lu\n", filename,*size); - return 1; -} - -#define PARSE_NAME 0 -#define PARSE_PROPS 1 - -int unrar_exec_list(const char *rarfile, ArchiveList_struct **list) -{ - char buf[1024], fname[1024]; - char *p; - pid_t pid; - int status = 0, file_num = -1, ignore_next_line = 0, state = PARSE_NAME; - FILE *rar_pipe; - ArchiveList_struct *alist = NULL, *current = NULL, *new; - - rar_pipe = launch_pipe(&pid, unrar_executable, UNRAR_LIST, rarfile, NULL); - if (!rar_pipe) return -1; - while (fgets(buf, sizeof(buf), rar_pipe)) { - int packsize, unpsize, ratio, day, month, year, hour, min; - int llen = strlen(buf); - // If read nothing, we got a file_num -1. - if (file_num == -1) - file_num = 0; - if (buf[llen-1] != '\n') - // The line is too long, ignore it. - ignore_next_line = 2; - if (ignore_next_line) { - --ignore_next_line; - state = PARSE_NAME; - continue; - } - // Trim the line. - while (llen > 0 && strchr(" \t\n\r\v\f", buf[llen-1])) - --llen; - buf[llen] = '\0'; - p = buf; - while (*p && strchr(" \t\n\r\v\f", *p)) - ++p; - if (!*p) { - state = PARSE_NAME; - continue; - } - - if (state == PARSE_PROPS && sscanf(p, "%d %d %d%% %d-%d-%d %d:%d", - &unpsize, &packsize, &ratio, &day, - &month, &year, &hour, &min) == 8) { - new = calloc(1, sizeof(ArchiveList_struct)); - if (!new) { - file_num = -1; - break; - } - if (!current) - alist = new; - else - current->next = new; - current = new; - current->item.Name = strdup(fname); - state = PARSE_NAME; - if (!current->item.Name) { - file_num = -1; - break; - } - current->item.PackSize = packsize; - current->item.UnpSize = unpsize; - ++file_num; - continue; - } - strcpy(fname, p); - state = PARSE_PROPS; - } - fclose(rar_pipe); - pid = waitpid(pid, &status, 0); - if (file_num < 0 || (pid == -1 && errno != ECHILD) || - (pid > 0 && status)) { - unrar_exec_freelist(alist); - return -1; - } - if (!alist) - return -1; - *list = alist; - mp_msg(MSGT_GLOBAL, MSGL_V, "UnRAR: list got %d files\n", file_num); - return file_num; -} - -void unrar_exec_freelist(ArchiveList_struct *list) -{ - ArchiveList_struct* tmp; - - while (list) { - tmp = list->next; - free(list->item.Name); - free(list); - list = tmp; - } -} |